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江苏兴化ZK10孔第四纪多重地层研究

劳金秀, 杨祝良, 于俊杰, 蒋仁, 彭博, 曾剑威, 刘晓燕

劳金秀, 杨祝良, 于俊杰, 蒋仁, 彭博, 曾剑威, 刘晓燕. 2016: 江苏兴化ZK10孔第四纪多重地层研究. 地质通报, 35(10): 1705-1714.
引用本文: 劳金秀, 杨祝良, 于俊杰, 蒋仁, 彭博, 曾剑威, 刘晓燕. 2016: 江苏兴化ZK10孔第四纪多重地层研究. 地质通报, 35(10): 1705-1714.
LAO Jinxiu, YANG Zhuliang, YU Junjie, JIANG Ren, PENG Bo, ZENG Jianwei, LIU Xiaoyan. 2016: Quaternary multistratigraphic study of Borehole ZK10, Xinghua, Jiangsu Province. Geological Bulletin of China, 35(10): 1705-1714.
Citation: LAO Jinxiu, YANG Zhuliang, YU Junjie, JIANG Ren, PENG Bo, ZENG Jianwei, LIU Xiaoyan. 2016: Quaternary multistratigraphic study of Borehole ZK10, Xinghua, Jiangsu Province. Geological Bulletin of China, 35(10): 1705-1714.

江苏兴化ZK10孔第四纪多重地层研究

基金项目: 

中国地质调查局项目 1212011120173、1212011220254、1212011220541

详细信息
    作者简介:

    劳金秀(1981-), 女, 硕士, 助理研究员, 从事第四纪地质研究。E-mail:laojinxiu@126.com

  • 中图分类号: P534.63

Quaternary multistratigraphic study of Borehole ZK10, Xinghua, Jiangsu Province

  • 摘要:

    通过对江苏兴化ZK10孔岩石地层、生物地层、磁性地层及年代地层的研究,确定了该孔第四纪年代地层序列:①第四纪底界置于松山/高斯极性世分界处,埋深212m,距今2.58Ma。下更新统包括五队镇组下段、中段及上段的中下部,对应孢粉组合Ⅰ-1和Ⅰ-2。②早、中更新世界线与布容/松山极性世界线吻合,距今0.78Ma,埋深约120m,位于孢粉Ⅰ-2与Ⅱ带的分界处。中更新统包括五队镇组上段顶部、小腰庄组下段及上段的中下部。五队镇组是包含下、中更新统的跨时岩石地层单位。③中、晚更新世界线埋深81.5m,120ka BP左右,置于孢粉带Ⅱ与Ⅲ-1的分界处,与小腰庄组和灌南组分界线基本吻合。上更新统包括小腰庄组上段上部及灌南组。小腰庄组是包含中、上更新统的跨时地层单位。上更新统包括Ⅲ-1、Ⅲ-2、Ⅳ和Ⅴ孢粉带。④晚更新世与全新世界线埋深12.25m,距今10ka BP左右,位于Ⅴ与Ⅵ孢粉带分界处。全新统为淤尖组,对应孢粉Ⅵ带。

    Abstract:

    Borehole ZK10 is located in Xinghua City, Jiangsu Province. Based on litho-, bio-, magneto- and chronostratigraphic study of the core sediments, the authors established its Quaternary chronological framework: ①The lower boundary of Quaternary, consistent with the G/M boundary at 2.58Ma, was found at 212m in depth. The Lower Pleistocene in this core was composed of the lower, middle members and lower to mid-parts of the upper member of the Wuduizhen Formation, and corresponded to the pollen zones Ⅰ-1 and Ⅰ-2. ②The Early/Middle Pleistocene boundary, in accord with the M/B boundary at 0.78Ma, was found at 120m. This was defined at the boundary between the pollen zones Ⅰ-1 and Ⅱ. The Middle Pleistocene was composed of the top part of upper member of Wuduizhen Formation and the lower member and the lower- to mid-parts of the upper member of the Xiaoyaozhuang Formation. The Wuduizhen Formation was a time-transgressive lithostratigraphical unit across the Lower/Middle Pleistocene. ③The Middle/Late Pleistocene boundary at 120ka BP was found at the depth of 81.5m. It lay on the boundary between the pollen zones Ⅱ and Ⅲ-1, and essentially coincided with the boundary between Xiaoyaozhuang Formation and Guannan Formation. The latter was another timetransgressive unit crossing both the Middle and Upper Pleistocene. The Upper Pleistocene was composed of the pollen zones Ⅲ-1, Ⅲ-2, Ⅳ and Ⅴ. ④The Late Pleistocene/Holocene boundary, about 10ka BP, 12.25m, lay on the pollen boundary between zones Ⅴ and Ⅵ. Lithostratigraphically, Holocene deposits belong to the Yujian Formation and correspond to the pollen zone Ⅵ.

  • 致谢: 国土资源部地下水矿泉水及环境监测中心鉴定孢粉及介形类化石,南京地质调查中心实验室测量古地磁,北京大学考古文博学院AMS 14C 实验室测量14C 年龄,一并致谢。
  • 图  1   ZK10 钻孔位置

    Figure  1.   Location of Borehole ZK10

    图  2   ZK10 孔孢粉

    Figure  2.   Sporopollen diagram of Borehole ZK10

    图  3   ZK10 孔古地磁极性变化

    Figure  3.   Variation of the palaeomagnetic polarities of Borehole ZK10

    图  4   ZK10 孔第四纪多重地层划分对比

    Figure  4.   Quaternary multistratigraphic division of Borehole ZK10

    表  1   ZK10 孔介形类化石名单

    Table  1   List of ostracoda fossils of Borehole ZK10

    样品编号化石名称生存环境
    WT13Neomonoceratina dongtaiensis Yang et Chen东台新单角介海相
    Sinocythere dongtaiensis Yang et Chen东台中华花介海相
    Tanella opima Chen丰满陈氏介海相
    WT19Loxoconcha binhaiensis Ho滨海弯背介海相
    Sinocyther ideaimpressa (Brady) 凹陷中华美花介广盐性种
    Sinocythere dongtaiensis Yang et Chen东台中华花介海相
    WT20Sinocyther ideaimpressa (Brady) 凹陷中华美花介广盐性种
    WT22Cushmanidea japonica Hanai日本库士曼介海相
    Cushmanidea triangulate Hou三角库士曼介海相
    Loxoconcha binhaiensis Ho滨海弯背介海相
    Munseyella japonica (Hanai) 日本穆赛介海相
    Neomonoceratina dongtaiensis Yang et Chen东台新单角介海相
    Sinocytheridea impressa (Brady) 凹陷中华美花介广盐性种
    Sinocythere dongtaiensis Yang et Chen东台中华花介海相
    WT23Neomonoceratina dongtaiensis Yang et Chen东台新单角介海相
    Sinocytheridea impressa (Brady) 凹陷中华美花介广盐性种
    Spinileberis sinensis Chen中华刺面介海相
    WT24Neomonoceratina dongtaiensis Yang et Chen东台新单角介海相
    WT25Bicornucythere bisanensis (Okuba)皮桑双角花介海相
    Cushmanidea japonica Hanai日本库士曼介海相
    Bythoceratina sp. 深海角介(未定种)海相
    Neomonoceratina dongtaiensis Yang et Chen东台新单角介海相
    Sinocytheridea impressa (Brady) 凹陷中华美花介广盐性种
    Sinocythere dongtaiensis Yang et Chen东台中华花介海相
    WT26Bicornucythere bisanensis (Okuba) 皮桑双角花介海相
    Neomonoceratina dongtaiensis Yang et Chen东台新单角介海相
    Sinocytheridea impressa (Brady) 凹陷中华美花介广盐性种
    WT29Cushmanidea japonica Hanai日本库士曼介海相
    Cushmanidea triangulate Hou三角库士曼介海相
    Sinocyther ideaimpressa (Brady) 凹陷中华美花介广盐性种
    Sinocythere dongtaiensis Yang et Chen东台中华花介海相
    Tanella opima Chen丰满陈氏介海相
    WT30Hemicytherura tricarinata Hanai三肋半尾花介海相
    Sinocythere dongtaiensis Yang et Chen东台中华花介海相
    WT31Loxoconcha binhaiensis Ho滨海弯背介海相
    Sinocytheridea impressa (Brady) 凹陷中华美花介广盐性种
    Sinocythere dongtaiensis Yang et Chen东台中华花介海相
    WT52Candoniella extensa Bojie伸长小玻璃介沟、溪、池
    WT67Aurila uranouechiensis Ishizaki 浦野内耳形介海相
    Ilyocypris kaifengensis Lee开封土星介溪、沟、池
    WT77Candonasp. 玻璃介未定种(破损)沟、溪、池
    Eucypris inflata (Sars) 胖真星介河、湖
    Ilyocypris manasensis Mandelstam玛纳斯土星介溪、沟、池
    Ilyocypris biplicata 双折土星介溪、沟、池
    WT79Candona jucundus Yuan适意玻璃介沟、溪、池
    Ilyocypris biplicata 双折土星介溪、沟、池
    WT85Candoniella mirabilis 奇异小玻璃介溪、沟、池
    WT117Ilyocypris biplicata 双折土星介溪、沟、池
    下载: 导出CSV

    表  2   ZK10 孔AMS 14C 测年数据

    Table  2   AMS 14C dating results of Borehole ZK10

    序号样品编号实验室编号测年物质深度/m惯用年龄/BP校正年龄/cal BP
    1σ范围2σ范围中值概率
    1ZK1014C-1BA130451淤泥质粘土15.724900±8029027~2877819199~2866528912
    2ZK1014C-4BA130452淤泥质粘土16.224920±8029051~2879429229~2868128933
    下载: 导出CSV
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出版历程
  • 收稿日期:  2016-05-18
  • 修回日期:  2016-08-21
  • 网络出版日期:  2023-08-16
  • 刊出日期:  2016-09-30

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